Laserfiche WebLink
~• Geohydrology <br />The general geologic setting of the 2 West Extension area does not <br />differ substantially from that of the permit area. The western margin of <br />the underground workings will be determine by the dip of the coal seam. <br />Based upon drilling, remote sensing, and field observations, Empire Energy <br />expects that the dip of the F coal seam will exceed 14 degrees (25°) in <br />the area shown in Figure 1. It is upon this projection that the mine <br />plans have been amended to extend to the west. <br />Geographically, the workings of the extension area will average 6,000 <br />feet above sea level. This compares with an average topographic elevation <br />• in the area of 6,700 feet. The Yampa River lies in a valley known as the <br />C Round Bottom, with an average elevation of 6,100 feet. The workings will <br />extend to within 4,500 feet horizontally of the Round Bottom. <br />Structurally, the workings within the 2 West extension lie on the <br />western limb of the Williams Fork or Moffat Anticline which is coterminous <br />with the Round Bottom Syncline, the axis of which runs northwest-southeast <br />through the center of the Round Bottom. It should be noted that the <br />existing permit allow mining on the western side of the Williams Fork <br />Anticline to the extent of approximately 50 acres.. Because much of the <br />groundwater flow in the Yampa River basin is controlled structurally, it <br />is assumed that the western side of the Williams Fork Anticline <br />constitutes a ground water basin different from that of the remainder of <br />• the permit area. <br />~- <br />(REV. 11/Z1/83) <br />